Shuttle-feeler thread parter and clamp



Oct. 25,1927. 1,647,103

A H. A. DAVIS l SHUTTLE FEELER THREAD PARTER AND CLAMP Filed March so, 1927 y 22 6' y VEN TOR ATTORNEY APatented oct. z5, 1927.

g UNITED 's-'ra'res- PAT'EISVFY OFFICE. y

HARRY A. DAVIS, vOF HOPEDALE, MASSACHUSETTS, ASSIGNO'R TO DRAPER CORPORA- TION, 0F IIOPEDALE,l MASSACHUSETTS, A CORPORATION OF `MAINE.

"Application filed March 30, 1927. rSerial No. 179,641.

This invention relates to shuttle feeler thread parters and clamps whereby on replenishnient of .filling the thread is' parted between the cloth selvage and shuttle, and the end leading to the cloth selvage is clamped and positioned for the action of the temple thread cutter.

It is now the practice to provide filling replenishing looms with means for parting the threadadjacent the shuttle when in the replenishing box and to clamp the end leading to the cloth selvage so that on frontward movement of the shuttle feeler the thread will be `carried frontward and held for the action vof the temple thread cutter. An instance of this type of shuttle feeler thread parter and clamp is shown in the Harry A. Davis Patent, No. 1,585,898, dated May 25, 1926, and the presentl invention is a further development and improvement on the con` struction therein shown and described.

In shuttle feeler thread pai-ters and clamps as heretofore generally constructed, the thread parting member adjacent the side of the shuttle feeler rests directly against the shuttle feeler and the cooperating thread parter acts in conjunction therewith to part the thread. In such devices, also, it is usual to provide a clamp for clampingthe thread and as disclosed in the Davis patentabove mentionedv a stripper is employed for stripping the. thread from the parter when the thread parter and clamp is opened. l One of the objects of the present invention is to provide a shuttle feeler thread parter and clamp wherein the parting member, usually fixed, is spaced from the side of the shuttle feeler and is yieldable laterally during the thread parting operation; By lthus enabling the parting member adjacent the shuttle feeder to yield laterally, a more ef fective, sheer cut is provided when the cooperating parting member acts to part'the thread. In the Davis patent above menf tioned, the thread stripper serves to .strip the thread from the clamping members when the thread parter and clamp is opened, and the present invention seeks to improve upon the thread stripper by forming a recessxin the face thereof to insure freeingthe thread o when the thread parter and clamp is opened.

Another important feature of the lpresent invention consists in a double grip thread parter 'wherein a stationary or fixed clanip-'L stripper is interposedbe= etang the cutting' edge of tiener y will best be .made clear from the following l description and the accompanying drawings of one good form ofthe double grip thread parter and clamp, it being understood that incertain aspects of the invention the novel features thereof may be embodied in other forms of 'shuttle feeler thread pai-ters and clamps. Inthe drawings :V Fig. 1 is a perspective view of a double grip thread parter and clamp, showing. the outer clamping member as having ybeen moved relatively to the parting member to provide access to the cutting edge ofthe parting memberand the clamping face of the outer clamp;

Fig. 2 is a horizontal section on an enlarged scale, showing the relation of parts in their normal operating positions; and Y F ig. 3 is aside elevation. l lThe shuttle feeler 1 may be of any usual character and, as shown-in the presentV instance of the invention, its rearwardly extending portion is provided with the shuttle engaging jawsy 2 and 3, whereby, should the shuttle be not properly positioned -in the boX, the shuttle feeler will prevent replenish ment of filling. The shuttle feeler .is normally supported in position at the front'o'f the loom and on call for replenishment-of filling' is moved rearwardly tol ascertain the position of theshuttle and carry the shuttle feeler thread parter and clamp into operating position to part and clampv thev thread.

The means for 'effecting ysuch'movemeiit of theshuttle feeler is not herein shown and described because thedetails thereof form no part of the present invention. Y v In the present instance of theinvention, the thread parting member adjacent the side face of theshuttle'feeler is shown as `stationary or fixed, and'interposed'between the'side of the shuttlevfeeler and the is parting inein'ber is aspacer which. new

ber to permit lateral movement thereof during the thread parting` operation.

More speciiically stated, the shuttle teeler has mounted thereon the stud or pin 4, and the several parts constituting the thread partei' and clamp may be held in associated relation for parting and clamping the thread by a spring washer 5 interposed between the head 6 or' the bolt or pin 4 and the side of a stationary clamp and stripper 7.

The stationary thread parting member 8 has an opening 9 through which the pin or bolt 4 passes, and interposed between the side face of the shuttle 't'eeler and the parting member 8 is a spacer or washer 10 which serves to laterally space the fixed parting member 8 from the side tace of the shuttle eeler, so that the front parting or cutting portion of the stationary partei.' 8 mayyield laterally when the cooperating parting member is moved to part the thread. Owing to the spaced relation, as indicated at 11, between the surface of the shuttle teeler and stationary parting member 8, the latter may yield laterally towards the tace ot the shuttle :teeler during the thread parting operation. This structural condition also permits the stationary thread partei' or member 8 to normally occupy a` position as shown in dotted lines, F ig. 2, so that its cutting edge will laterally overlap to a slight extent the ,corresponding cutting edge oi the cooperating cutting member 12, so that when the movable parting member 12 is moved to part the thread, a sheering action is provided7 which effectively parts the thread during the thread parting operation, and at the same time the fixed parting member 8 moved laterally by the movable partei' 12 trom the dotted to the tull line position indicated in Fig. 2, and towards the face of the shuttle teeler.

The movable thread parting member 12 is pivotally connected to the shuttle feeler by the stud 13 extending laterally from the feeler rontward oi' the bolt or pin 4 and i constitutes the tulcrum or pivot point about.

which the movable thread partei' turns dur ing the thread parting operation. The movable thread partei' 12 is also provided with an enlarged opening 14 through. which the bolt Vor pin passes, so that the movable thread parter 12 may turn upon its pivotal support 18 during its opening and closing movements. Y

In order that thel fixed thread parter 8 may be held in iXed position and in spaced relation from the side of the shuttle teeler, the frontwardly extending end portion ot the tiXed parting member is biturcated, as Vat 15, and the recess ot the bifurcation engages the pin 13. At the side of the movablethread partei` 12is the thread clampand stripper 7 which,

yas shown, is mounted upon the stud or pin 4 and its bifurcated end portion 16 engages the outer portion ot the pivotal stud 13, thereby holding the stationary thread clamp and stripper 7 in lixed position, in a manner substantially the same in this respect as the fixed thread parting member 8.

The stationary thread clamp and stripper 7has its lower portion at 17 formed with a clamping surface to cooperate with the grooved clamping surface 18 of the thread partei', so that when the thread has been parted by the cooperating parting members 8 and 12, its end leading towards the cloth selvage will be clamped and moved Yfrontwardly with the shuttle teeler to position the end leading to the cloth selvage for the action of the temple thread cutter. The upper portion ot the stationary clamp and stripper is provided with the trontwardly extending` toe 19, the front edge portion 2O ot which constitutes a stripper for stripping the thread from the partei' and clamp when the partei' is opened.

To insure that the stripped thread will be entirely free when the thread partei' and clamp is opened, the side faces 21 ot the stripper are recessed or countersunlr, with the result that when the thread partei' and clamp are opened and the threadstripped from the clamp, the recesses 21 insure tree dom ot the thread, so that it will not be carried rearwardly with the shuttle `teeler into te ldanger Zone of being carried into the s ec.

Associated with the movable thread partei' and clamp 12 is an outer clamp 22 which is articulated to the movable thread partei' 12 by a pin 23, shown in the present instance frontward oi the pivotal support 18 ot the movable parting member, and interposed between the side of the parting member 12 and the front end portion ot the outer cla-m p is a iiller piece 24. Y

In accordance with the present invention, the outer clamp 22 and the movable Vparting` member 12 which is pivotally connected thereto by the pin 23, are normally locked together by a locking vmember 25, which as shown consists of a detachable pin passed through the trontwardly extending 'portions 2-7 of the movable thread partei' 12 and the outer clamp 22, the construction being such that when the movable thread partei' 12 andthe outer clamp 22 are locked together by the locking pin 25, they are moved as a unit to clamp and part the thread,"and upon removal of the locking pin 25, the movable parting member 12 and the outer clamp 22 maybe relatively moved about their connection 23 to provide access tothe cutting edge portion ot the parting member and the clamping .face of the clamping member.

' In the present instance ot the invention, the locking pin 'for locking the movable pose.

thread partei' and the outer clamp together for movement as a unit in parting and clamping the thread, is constituted by the partei' and clamp opening pin 26, but, obviously, any removable locking Y member which will `serve to lock the movable parting member-and the outer clamp together for movement as a unit will serve the pur- The outer clamping member 22 is preferably formedas a resilient spring member which by virtue of its resiliency bears upon the outer side of the fixed parter and stripper 7.

The spacer l() which serves to laterally separate the parting portion of the stationary parter fromA the side of the shuttle feeler4 vis formed as aA washer mounted upon the pin or stud 4 and between the stationary parter 8 and the side face of the shuttle feeler, but such spacer may be otherwise formed, the essential in this respect being that the parting portion of the stationary partei' shall be separated laterally from the side face of the shuttle lfeeler to permit of lateral movement thereof during the thread parting operation,V and also'to permit the lateral overlapping of the-cutting edges of the stationary thread parter and the movable thread partei' to insure a sheer out.

It may be desirable at times to provide the side face of the movable parting. member l2 with scores or indentations which j may cooperate with the inner side face of the clamping portion 17 of the fixed clamp y and stripper 7 to thereby more securely clamp the thread and hold it as strain is placed' thereon when the shuttle Afeeler is moved to its front position. s

From the construction described it will be obvious that the thread parter and clamp shown is of the double grip type wherein the xed parting member 8 is laterally separated from the' adjacent vside face ofthe feeler with its cutting edge slightly overla-ppingthe cutting edge of the movable thread parter l2 to insure a sheer cut, and it will likewise beV obvious that when the thread has been parted and clamped by the clamping surface 18 and the outer clamp 22, and the movable thread parter and outer clamp are openedfthe stripper'will act to strip the thread, while the :ecessedv portions 2l at the side of the stripper will insure disengagement of the thread asy the shuttle feeler moves rearwardly to shuttle feeling position. During normal operation of the device, the movable threadparter l2 and the outer thread clamp 22A which is pivotally connected thereto at 23, willl belocked y together by the locking device 25, and-when" it is desired'to have access to the cutting edge of the` knife for sharpening purposes or te the clamping face of the outer clamp7 he lock may be removed and the'movv scribed.

ing` position ready for the parting and clamping operation. Such parting and clamping operation may be effected in any usual manner, as by a portion ofthe lay'or a part secured thereto, to act upon theffront tail portions of the thread parter and clamp, but since such devices are now wellknown, they are not herein shown and de- By removing the locking device 25, the outer clamping member 22 and the moveable parting member 12 may be swung into the position indicated in Fig. 12 without removal from the shuttle feeler7V to thereby provide access to each of said members. n l f n Vfhile the parting member 8 is shown as fixed in the illustrated form of theparter and clamp, the invention is not necessarily restricted in this respect and such parting member 8 may be otherwise contrived to cooperate with the parting member 12 in parting the thread. n Y

`What is elaimed'is:

l. In a shuttle feeler thread parter and clamp, the combina-tion of affixed parting member laterally spaced from the shuttle Vfeeler to permit lateral movement of the fixed parting member towards the side of the shuttle feeler, a clamping member, a movable ythread partei1 n and clamp mounted on the shuttle feeler having a parting'edge on one side and a thread clamping surface on the opposite side to cooperate with the clamping member, and a thread stripper formed as a toe extending from the clamping member and having side recesses to strip and'free the thread as the parter and clamp are opened.

2. In a shuttle feeler thread parter andv clamp, the combination of the shuttle feeler having a parting member and a clamping member, aI thread parter and Vclamp between the parting member and clampingmember, and*vv a thread stripper extending above the clampingv surface of the clamping member and having side recesses for stripping and freeing the thread as the parter and clamp are opened.

- 3. In a shuttle feeler thread parter and clamp, the combination vof a shuttle feeler having parting and clamping members for` parting` and clamping the thread', and a llO thread stripper formed as an upwardly extending toe to strip the thread from the clampinof members as theyv are opened and provided with a recessed side surface for freeing the thread as the parting and clamping members are opened.

4. In a shuttle feeler thread partei. and clamp, the combination of a shuttle ieeler having` parting and clamping members .tor parting and clamping the thread, and a thread stripper extending above the clamping surfaces of the parting and clamping members when in thread clamping position to strip the thread 'from the clamping surfaces as they are openedV and provided with a' recess at each side surface of the thread 1 stripper tor treeing` the thread as the parting` and clamping members are opened.

5. In a double grip shuttle `teeler thread parter and clamp, the combination of a shuttle feeler having a thread parting member adjacent the side thereof` and a fixed clamping member, a combined thread parter and clamp between said members, an outer clamping member, an articulating connection between the combined thread parter and clamp and outer clamping` member for relative movement of said members to permit access to the cutting edge of the partei, and a locking and unlocking; device for holding said members for relative movement that they may act as a unit to part and clamp the thread and for 'freeing them to such relative movement at will.

6. In a double grip shuttle "eeler thread partei' and clamp, the combination ot' a shuttle feeler having a thread parting member adjacent the side thereof and a fixed clamping member, a combined thread parter and clamp between said members, anouter clamping member, a pivotal connection between the combined parter and clamp and the outer clamping member that they may be relatively moved on the shuttle eeler to permit access to either, and a locking` and unlocking device for holding them from such movement that they may act together to part and clamp the thread and tor unlocking them at will that they may be soY relatively moved.`

7. A double grip thread parter and clamp, comprising, in combination, a shuttle teeler, a movable parting member, a fixed clamping member, an outer clamping member cooperating with lined clamping member to clamp the thread,- a connection between the movable parting member and outer clamping member peri-mitin@` relative movement of said members trom their normal relative positions on the shuttle feeler for ready access to theirl cutting and clamping portions, and a locking device for locking the parting and outer clamping members together in their normal relations to cause them to move together to part and clamp the thread and Ytor unlocking them that they may be relatively moved.

8. In a double grip shuttle ,teeler thread parter and clamp, the combination of a shuttle teeler havingv a thread parting member adjacent the side` thereof and a iXed clamping member, a combined thread parter and clamp between said members, an outer clamping` member, a pivotal connection between the combined parter and clamp and the outer clamping member that they may be relatively moved on the shuttle feeler to permit access to either, and a screw pin for locking said members 'from relative movement that they may part and clamp the thread and freeing them at will to such relative movement,

In testimony whereof, I have signedmy name to this specification.

HARRY A. Davis. 

